/* Theme Name: ZeroY Starter */
:root {
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: Consolas, "SFMono-Regular", Menlo, Monaco, monospace;
  --color-ink: #171717;
  --color-background: #ffffff;
  --color-focus: #c6a664;
  --radius-control: 4px;
  --space-section: 32px;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-background);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
* {
  box-sizing: border-box;
}
a {
  color: inherit;
  text-decoration: none;
}
p {
  line-height: 1.6;
}
img {
  max-width: 100%;
  height: auto;
}
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
}

/* Site Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 8, 10, 0.96);
  border-bottom: 1px solid rgba(198, 166, 100, 0.2);
  backdrop-filter: blur(12px);
  color: #f5f4f0;
}
.header-wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-brand {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #ffffff;
}
.site-brand span {
  color: #c6a664;
}
.site-nav {
  display: flex;
  gap: 28px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #b8b8ba;
}
.site-nav a:hover,
.site-nav a.active {
  color: #c6a664;
}
.header-cta {
  padding: 10px 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid #c6a664;
  color: #c6a664;
  border-radius: 3px;
  transition: all 0.25s ease;
}
.header-cta:hover {
  background: #c6a664;
  color: #111;
}

/* Site Footer */
.site-footer {
  background: #08080a;
  color: #999;
  border-top: 1px solid rgba(198, 166, 100, 0.2);
  padding: 60px 0 30px;
  font-size: 13px;
}
.footer-wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand h3 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.footer-brand p {
  max-width: 320px;
  line-height: 1.6;
  color: #777;
}
.footer-col h4 {
  color: #eee;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.footer-col a:hover {
  color: #c6a664;
}
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: #666;
}

/* ABOUT PAGE MODULES */
.gt-about {
  --gt-black: #08080a;
  --gt-black2: #121215;
  --gt-graphite: #1c1c20;
  --gt-paper: #f6f4ef;
  --gt-white: #ffffff;
  --gt-line: #dcd8cf;
  --gt-gold: #c6a664;
  --gt-gold2: #d8be86;
  --gt-ink: #171717;
  --gt-text-sub: #666668;
}
.gt-wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}
.gt-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gt-gold);
  margin-bottom: 16px;
}
.gt-kicker::before {
  content: "";
  width: 28px;
  height: 1.5px;
  background: var(--gt-gold);
}
.gt-section-title {
  font-size: clamp(32px, 3.8vw, 54px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.035em;
  margin: 0 0 16px;
  color: var(--gt-ink);
}
.gt-section-lead {
  font-size: 17px;
  line-height: 1.6;
  color: var(--gt-text-sub);
  max-width: 640px;
  margin: 0;
}
.gt-hero {
  background: radial-gradient(circle at 80% 20%, rgba(198,166,100,0.14), transparent 32%),
              linear-gradient(135deg, #070709 0%, #141418 60%, #09090c 100%);
  color: #f5f4f0;
  padding: 96px 0 80px;
}
.gt-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.gt-hero-title {
  font-size: clamp(40px, 5.2vw, 76px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  color: #ffffff;
}
.gt-hero-lead {
  font-size: 18px;
  line-height: 1.65;
  color: #b8b8ba;
  margin: 0 0 36px;
  max-width: 620px;
}
.gt-btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.gt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.25s ease;
  cursor: pointer;
}
.gt-btn-gold {
  background: var(--gt-gold);
  color: #111;
  border: 1px solid var(--gt-gold);
}
.gt-btn-gold:hover {
  background: var(--gt-gold2);
  border-color: var(--gt-gold2);
  color: #000;
  transform: translateY(-2px);
}
.gt-btn-outline {
  background: transparent;
  color: #eee;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.gt-btn-outline:hover {
  border-color: var(--gt-gold);
  color: var(--gt-gold);
  transform: translateY(-2px);
}
.gt-hero-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 28px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.gt-meta-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 4px;
}
.gt-meta-item strong {
  font-size: 14px;
  color: var(--gt-gold2);
  font-weight: 600;
}
.gt-strip {
  background: var(--gt-paper);
  border-bottom: 1px solid var(--gt-line);
  padding: 32px 0;
}
.gt-strip-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.gt-strip-item {
  border-left: 1px solid var(--gt-line);
  padding-left: 20px;
}
.gt-strip-val {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gt-ink);
  margin-bottom: 6px;
}
.gt-strip-val span {
  font-size: 13px;
  font-weight: 600;
  color: var(--gt-gold);
}
.gt-strip-lbl {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #777;
  line-height: 1.35;
}
.gt-section {
  padding: 96px 0;
}
.gt-bg-light {
  background: #faf8f5;
}
.gt-bg-dark {
  background: var(--gt-black);
  color: #eee;
}
.gt-bg-white {
  background: #ffffff;
}
.gt-text-light .gt-section-title {
  color: #ffffff;
}
.gt-text-muted {
  color: #9c9c9e;
}
.gt-section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: flex-end;
  margin-bottom: 56px;
}
.gt-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.gt-card {
  background: #ffffff;
  border: 1px solid var(--gt-line);
  border-radius: 6px;
  padding: 44px 38px;
  display: flex;
  flex-direction: column;
}
.gt-card-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gt-gold);
  margin-bottom: 12px;
}
.gt-card-title {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
  color: var(--gt-ink);
}
.gt-card-desc {
  font-size: 15px;
  color: #555;
  line-height: 1.6;
  margin: 0 0 24px;
}
.gt-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: grid;
  gap: 12px;
  font-size: 14px;
  color: #444;
}
.gt-feature-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.5;
}
.gt-feature-list li::before {
  content: "■";
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 8px;
  color: var(--gt-gold);
}
.gt-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gt-dark-box {
  background: var(--gt-black2);
  border: 1px solid rgba(198, 166, 100, 0.18);
  border-radius: 4px;
  padding: 34px 28px;
}
.gt-box-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gt-gold2);
  margin-bottom: 20px;
}
.gt-box-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0 0 12px;
}
.gt-box-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #9a9a9c;
  margin: 0;
}
.gt-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.gt-step-item {
  background: #ffffff;
  border: 1px solid var(--gt-line);
  border-radius: 4px;
  padding: 32px 26px;
}
.gt-step-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gt-gold);
  background: rgba(198, 166, 100, 0.1);
  padding: 4px 8px;
  border-radius: 3px;
  margin-bottom: 16px;
}
.gt-step-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--gt-ink);
}
.gt-step-desc {
  font-size: 14px;
  line-height: 1.55;
  color: #666;
  margin: 0;
}
.gt-feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.gt-qc-list {
  display: grid;
  gap: 16px;
}
.gt-qc-point {
  font-size: 14px;
  line-height: 1.6;
  color: #444;
  padding-left: 20px;
  border-left: 2px solid var(--gt-gold);
}
.gt-qc-point strong {
  color: var(--gt-ink);
}
.gt-market-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gt-market-item {
  background: #fff;
  border: 1px solid var(--gt-line);
  border-radius: 4px;
  padding: 28px 24px;
}
.gt-market-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--gt-gold);
  margin-bottom: 10px;
}
.gt-market-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--gt-ink);
}
.gt-market-item p {
  font-size: 13px;
  line-height: 1.55;
  color: #666;
  margin: 0;
}
.gt-cta-section {
  background: radial-gradient(circle at 50% 30%, rgba(198,166,100,0.12), transparent 45%),
              linear-gradient(135deg, #08080a 0%, #16161a 100%);
  color: #fff;
  padding: 108px 0;
  text-align: center;
}
.gt-cta-inner {
  max-width: 780px;
  margin: 0 auto;
}
.gt-cta-title {
  font-size: clamp(34px, 4.4vw, 56px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin: 0 0 20px;
  color: #ffffff;
}
.gt-cta-lead {
  font-size: 17px;
  line-height: 1.6;
  color: #aaa;
  margin: 0 0 40px;
}
.gt-cta-contacts {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 28px;
  margin-top: 24px;
}
.gt-cta-contact-item {
  font-size: 13px;
  color: #888;
}
.gt-cta-contact-item span {
  margin-right: 8px;
}
.gt-cta-contact-item a {
  color: var(--gt-gold2);
  text-decoration: none;
  font-weight: 600;
}
.gt-cta-contact-item a:hover {
  text-decoration: underline;
}
.gt-placeholder {
  background: #d3d1cb;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
}
.gt-placeholder-hero {
  min-height: 480px;
  height: 100%;
  border-radius: 6px;
  background: #25252a;
  border-color: rgba(198, 166, 100, 0.22);
}
.gt-placeholder-card {
  min-height: 240px;
  margin-top: auto;
  border-radius: 4px;
  background: #e2dfd9;
}
.gt-placeholder-tall {
  min-height: 520px;
  border-radius: 6px;
  background: #dfdcd6;
}
.gt-ph-inner {
  text-align: center;
  padding: 20px;
}
.gt-ph-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #777;
  margin-bottom: 6px;
}
.gt-hero .gt-ph-tag {
  color: var(--gt-gold2);
}
.gt-ph-desc {
  display: block;
  font-size: 12px;
  color: #888;
  font-weight: 500;
}
.gt-hero .gt-ph-desc {
  color: #999;
}

@media (max-width: 1024px) {
  .gt-hero-grid,
  .gt-section-head,
  .gt-grid-2,
  .gt-feature-split {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .gt-strip-row {
    grid-template-columns: repeat(3, 1fr);
  }
  .gt-grid-3,
  .gt-steps-grid,
  .gt-market-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .header-wrap {
    height: 64px;
  }
  .site-nav {
    display: none;
  }
  .gt-section {
    padding: 64px 0;
  }
  .gt-hero {
    padding: 64px 0 54px;
  }
  .gt-strip-row {
    grid-template-columns: 1fr;
  }
  .gt-strip-item {
    border-left: none;
    border-bottom: 1px solid var(--gt-line);
    padding: 0 0 16px 0;
  }
  .gt-strip-item:last-child {
    border-bottom: none;
  }
  .gt-grid-3,
  .gt-steps-grid,
  .gt-market-grid {
    grid-template-columns: 1fr;
  }
  .gt-hero-meta {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}

/* Navigation dropdown: Books → audience terms (hover + keyboard focus) */
.nav-item{position:relative;display:inline-flex;align-items:center}
.nav-item>.nav-link{display:inline-flex;align-items:center;gap:7px}
.nav-item>.nav-link::after{content:"";width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-top:-3px;opacity:.5}
.nav-item:hover>.nav-link::after,.nav-item:focus-within>.nav-link::after{opacity:1}
.nav-menu{position:absolute;top:calc(100% + 16px);left:-18px;min-width:216px;background:#0c0c0f;border:1px solid rgba(198,166,100,.24);border-radius:5px;padding:9px;display:grid;gap:2px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease;box-shadow:0 24px 54px rgba(0,0,0,.6);z-index:90}
.nav-menu::before{content:"";position:absolute;left:0;right:0;top:-16px;height:16px}
.nav-item:hover .nav-menu,.nav-item:focus-within .nav-menu,.nav-item:target .nav-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-menu-link{display:block;padding:10px 12px;border-radius:3px;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#b8b8ba;transition:.2s}
.nav-menu-link:hover{background:rgba(198,166,100,.12);color:#d8be86}
.nav-menu-link.is-all{color:#c6a664;border-bottom:1px solid rgba(198,166,100,.2);border-radius:0;margin-bottom:5px;padding-bottom:12px}
.nav-menu-link.is-all:hover{background:transparent;color:#d8be86}

/* Mega menu panel: 用途 / 题材 / 受众群体 columns */
.nav-mega{left:50%;right:auto;display:block;min-width:0;width:min(780px,calc(100vw - 40px));padding:24px 26px 18px;transform:translateX(-50%) translateY(8px)}
.nav-item:hover .nav-mega,.nav-item:focus-within .nav-mega,.nav-item:target .nav-mega{transform:translateX(-50%) translateY(0)}
.nav-mega-grid{display:grid;grid-template-columns:repeat(3,minmax(150px,1fr));gap:10px 34px}
.nav-mega-col{min-width:0}
.nav-mega-head{display:block;font-family:'Montserrat',system-ui,sans-serif;font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#c6a664;padding-bottom:11px;border-bottom:1px solid rgba(198,166,100,.3);margin-bottom:9px}
.nav-mega-list{display:grid;gap:1px}
.nav-mega-link{display:block;padding:8px 0;font-size:13.5px;letter-spacing:.01em;text-transform:none;color:#b8b8ba;transition:color .18s ease,padding-left .18s ease}
.nav-mega-link:hover{color:#d8be86;padding-left:4px}
.nav-mega-foot{display:flex;align-items:baseline;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.08)}
.nav-mega-all{font-family:'Montserrat',system-ui,sans-serif;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#c6a664}
.nav-mega-all::after{content:" →"}
.nav-mega-all:hover{color:#d8be86}
.nav-mega-hint{font-size:11px;color:#7d7d82;text-transform:none;letter-spacing:0}
@media (max-width:900px){
  .nav-mega-grid{grid-template-columns:repeat(3,minmax(120px,1fr));gap:10px 20px}
}

/* Audience thumbnails inside the mega menu (only when a term image is set) */
.nav-mega-link.has-thumb{display:flex;align-items:center;gap:10px}
.nav-mega-thumb{width:28px;height:28px;border-radius:50%;object-fit:cover;flex:0 0 auto;border:1px solid rgba(198,166,100,.32);background:#1c1c21}
.nav-mega-link.has-thumb:hover .nav-mega-thumb{border-color:#c6a664}

/* Mega menu term rows: play + download actions */
.nav-mega-item{display:flex;align-items:center;gap:6px}
.nav-mega-item .nav-mega-link{flex:1 1 auto;min-width:0}
.nav-mega-act{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;border:1px solid rgba(198,166,100,.34);background:transparent;color:#c6a664;font-size:11px;line-height:1;cursor:pointer;transition:.2s}
.nav-mega-act:hover{background:rgba(198,166,100,.16);border-color:#c6a664;color:#d8be86}
.nav-mega-dl{font-size:13px}

/* Video dialog (lazy iframe, opened from the menu) */
.nz-video-dialog{border:0;padding:0;background:transparent;width:min(960px,92vw);max-width:100%;overflow:visible}
.nz-video-dialog::backdrop{background:rgba(4,4,6,.84)}
.nz-video-frame{position:relative;background:#0c0c0f;border:1px solid rgba(198,166,100,.32);border-radius:8px;padding:12px}
.nz-video-box{position:relative;aspect-ratio:16/9;background:#000;border-radius:4px;overflow:hidden}
.nz-video-box iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.nz-video-close{position:absolute;top:-13px;right:-13px;width:32px;height:32px;border-radius:50%;border:0;background:linear-gradient(135deg,#c6a664,#b89654);color:#141416;font-size:17px;line-height:1;font-weight:700;cursor:pointer;box-shadow:0 8px 22px rgba(0,0,0,.5)}
.nz-video-close:hover{background:#d8be86}